| 1991 |
66%
|
| 1996 |
35%
|
| 1990 |
80%
|
| 1984 |
65%
|
| 1993 |
55%
|
| 1997 |
52%
|
| 1985 |
77%
|
| 1998 |
42%
|
| 1991 |
46%
|
| 1999 |
58%
|
